Agkistrodon Contortrix -

: Like all pit vipers, they possess heat-sensing pits located between each eye and nostril to track warm-blooded prey.

: Young copperheads are grayer than adults and possess a bright yellow or green tail tip used as a lure (caudal luring) to attract insects or frogs. Behavior & Habitat agkistrodon contortrix

: The head is broad, triangular, and distinct from the neck, typically a solid "copper" or rich brown color. : Like all pit vipers, they possess heat-sensing